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CRITICAL

CVE-2026-28446

OpenClaw < 2026.2.1 - Inbound Allowlist Policy Bypass in voice-call Extension via Empty Caller ID and Suffix Matching

CVSS v3

9.4

CRITICAL

EPSS Score

1.0 %

exploit probability, as of 2026-10-02

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equality. Remote attackers can bypass inbound access controls by placing calls with missing caller IDs or numbers ending with allowlisted digits to reach the voice-call agent and execute tools.

Technical details

Published
2026-03-05
Last Modified
2026-03-11

Frequently asked questions

What is CVE-2026-28446?

OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equality. Remote attackers can bypass inbound access controls by placing calls with missing caller IDs or numbers ending with allowlisted digits to reach the voice-call agent and execute tools.

Is CVE-2026-28446 actively exploited?

Active exploitation of CVE-2026-28446 has not been confirmed. Its EPSS score was 1.0% on 2026-10-02, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-28446?

CVE-2026-28446 has a CVSS v3 base score of 9.4 (CRITICAL severity).

Is CVE-2026-28446 affecting your environment?

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